Toshiba MMU-AP0091H Installation Manual page 109

10-6. Cautions Concerning High Drains
Observe the following cautions when installing a drain pipe to a drain that is higher than the unit.
1) Cautions on drain installation work
1. The unit must be installed horizontally.
2. The height to the drain outside the unit must be within the specified limit.
3. The rising pipe should be within 100mm of the drain.
4. The drain pipe must have a downward slope of at least 1/100.
(After installing the piping, adjust the unit in the vertical direction carefully.)
5. When using a collective pipe, the drain pipe must drop at least 100mm before it empties into the collective
pipe.
6. Insulate the drain pipe completely.
2) Height of a high drain outside of the unit
Drain pump bult-in type
Ceiling surface
Type
4-way air discharge cassette type
MMU-AP «««« H
2-way air discharge cassette type
MMU-AP0071WH to 0301WH
2-way air discharge cassette type
MMU-AP481WH
Drain pump
incorporated
1-way air discharge cassette type
MMU-AP0151SH, AP0181SH, AP0241SH
1-way air discharge cassette type
MMU-AP0071YH, AP0091YH, AP0121YH
Concealed duct standard type
MMD-AP «««« BH
Less than 100
Indoor unit type
Height of connection
H
Height of outlet on unit
h
Allowable height of drain-up outside of unit (Condition)
Position of main unit
drain port
h = 210 mm
H = 348 mm
h = 356 mm
h = 160 mm
h = 200 mm
h∗ = 280 mm
∗ From unit bottom surface
109
Allowable height of drain-up
(From drain port of main unit)
H = 640 mm
H = 160 mm
H = 160 mm
H = 340mm
H = 150 mm
H = 270 mm